Question
Mathematics Question on Coordinate Geometry
If x+13y=40 is normal to the curve y=5x2+ax+β at the point (1, 3), then the value of αß is equal to
A
15
B
6
C
6
D
13
E
-15
Answer
-15
Explanation
Solution
The correct option is (E) : -15
If x+13y=40 is normal to the curve y=5x2+ax+β at the point (1, 3), then the value of αß is equal to
15
6
6
13
-15
-15
The correct option is (E) : -15